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strands.number-sense.h1

Number Sense

Understanding numbers, their relationships and numerical reasoning

strands.algebra.h1

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Using symbols to solve equations and express patterns

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strands.measurement.h1

Measurement

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Operations

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strands.number-sense.h1

Number Sense

Understanding numbers, their relationships and numerical reasoning

strands.algebra.h1

Algebra

Using symbols to solve equations and express patterns

strands.geometry.h1

Geometry

Studying shapes, sizes and spatial relationships in mathematics

strands.measurement.h1

Measurement

Quantifying and comparing attributes like length, weight and volume

strands.operations.h1

Operations

Performing mathematical operations like addition, subtraction, division

strands.statistics-probability.h1

Probability and Statistics

Analyzing uncertainty and likelihood of events and outcomes

Community Resources
Get started with our Resources
GeoGebra

Calculator Suite

Explore functions, solve equations, construct geometric shapes

GeoGebra Graphing

Graphing Calculator

Visualize equations and functions with interactive graphs and plots

GeoGebra Geometry

Geometry

Explore geometric concepts and constructions in a dynamic environment

GeoGebra 3D Calculator

3D Calculator

Graph functions and perform calculations in 3D

GeoGebra Scientific Calculator

Scientific Calculator

Perform calculations with fractions, statistics and exponential functions

GeoGebra Notes

Notes

Explore our online note taking app with interactive graphs, slides, images and much more

App Downloads
Get started with the GeoGebra Apps

David Richeson

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  • The Inverse of a Parabola is a Cardioid

    Activity

    David Richeson

  • Cardioid from a Rolling Circle in Two Ways

    Activity

    David Richeson

  • A Cardioid from a Family of Parabolas

    Activity

    David Richeson

  • Cardioid as the Conchoid of a Circle

    Activity

    David Richeson

  • The Evolute of a Cardioid

    Activity

    David Richeson

  • The Involute of a Cardioid

    Activity

    David Richeson

  • The Cardioid as a Pedal Curve

    Activity

    David Richeson

  • The envelope of lines form an ellipse

    Activity

    David Richeson

  • Planets, stars, and planetary orbits

    Activity

    David Richeson

  • Simson Line

    Activity

    David Richeson

  • Homotopy: Boy's surface to the Roman Surface

    Activity

    David Richeson

  • Why is there a heart at the bottom of my coffee mug?

    Activity

    David Richeson

  • nephroid reflection

    Activity

    David Richeson

  • Congruent triangles and reflections

    Activity

    David Richeson

  • Three reflections is a reflection or a glide reflection

    Activity

    David Richeson

  • Two reflections is a translation or a rotation

    Activity

    David Richeson

  • Final Grade Calculator: MATH 481 (Spring 2024)

    Activity

    David Richeson

  • Impossible triangle 2—line up the dots

    Activity

    David Richeson

  • Impossible triangle—line up the dots

    Activity

    David Richeson

  • Billiard circuits in quadrilaterals

    Activity

    David Richeson

  • A One-Parameter Family of Voderberg Tiles

    Activity

    David Richeson

  • Conic Sections

    Activity

    David Richeson

  • Random Numbers, Obtuse Triangles, and π

    Activity

    David Richeson

  • Pursuit Right Triangle

    Activity

    David Richeson

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